Pre-AP Algebra Test-- 9.14.10
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26 terms
Terms | Definitions |
|---|---|
 Commutative | Order of numbers/terms changes, but answer does not. |
| Associative | Groups of parenthesis changes, but the order stays the same. |
| Distributive | Problem starts with parenthesis, but after equal sign has none. |
| Identity | Value does not change when multiplied by one, or when zero is added to it. |
| Inverse | Answer to the problem is always one or zero. |
| Multiplicative Property of Zero | Answer to the problem is always zero. |
| Reflexive | A number is equal to itself. |
| Symmetric | If a=b, then b=a; Flips over equal sign |
| Transitive | If a=b, and b=c, then a=c |
| Substitution | Something is replaced in the equation that equals the same amount. |
| Natural (counting) numbers | 1,2,3, etc |
| Whole numbers | 0,1,2,3, etc |
| Integers | -3,-2,-1,0,1,2,3 |
| Rational numbers | Any number that can be written as a fraction |
| Irrational numbers | Non-repeating, non-ending decimals |
| Reals | All numbers so far |
| Commutative | x+9 = 9+x |
| Distributive | 2(x+3) = 2x+6 |
| Associative | (2+5)+4 = 2+(5+4) |
| Identity | -11*1 = -11 |
| Inverse | -8+8 = 0 |
| Multiplicative Property of Zero | 8*0 = 0 |
| Reflexive | 2 = 2 |
| Symmetric | a=b, b=a |
| Transitive | a=b, b=c, a=c |
| Substitution | (3+4)+5; 7+5 |
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